See your options side by side
Choose one task and 2–4 tools. Compare pricing, output, test results and trust.
Test scope & comparison notes
These are recorded facts, not a unified ranking. Tested tiers and scope are not consistently recorded. Read pricing with its date and timing with its conditions. Privacy observations reflect visible flows and statements, not a security audit.
Cross-task capability coverage across selected products
Each product is scored independently per task edge; switch tasks below while keeping shared products selected| Task edge | zerogpt.com | smodin.io | Switch / compare |
|---|---|---|---|
| AI paraphrasing & rewriting | 87/100 TXT · Output attached | 82/100 TXT · Output attached | Active task |
| AI content detection | 96/100 JSON · Output attached | 91/100 JSON · Output attached |
Select at least 2 tools to compare
You can also filter a task page first, then compare your shortlist.
Browse this task →| Criterion | ZeroGPT AI paraphrasing & rewriting 87/100 Seven-aspect task score Anonymous instant rewriting up to 300 words per scan, finishing cloud inference in 5.83s with 100% fact/token retention, 80.7% lexical diversity, and multi-color change highlights. Tested export TXT · Output attached Historical test · 2026-11-05 | Smodin (AI Rewriter & Humanizer) AI paraphrasing & rewriting 82/100 Seven-aspect task score Smodin AI Rewriter & Humanizer delivered fast 1.18s cloud generation with 79.5% lexical diversity, preserving the anti-counterfeit token and financial figures (5/7 facts retained, 100 readability score), though a 1000-character entry minimum applies to anonymous users. Tested export TXT · Output attached Historical test · 2026-11-04 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | ZeroGPT Free, Pro, Plus, and Max personal subscription pricing structure · 2026-10-31 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-31 ↗ USD 0/month — Monthly 15,000 characters per scan, 1,250,000 words/mo allowance, 300 words one-time plagiarism check Basic AI detection and text analysis PRO (Monthly)2026-10-31 ↗ USD 14.99/month — Monthly 100,000 chars per scan, 50 batch files, 4.5M words/mo, ad-free experience, PDF reports Ad-free AI detection, PDF report export, thinking mode paraphraser & summarizer PLUS (Monthly)2026-10-31 ↗ USD 21.99/month — Monthly 100,000 chars per scan, 60 batch files, 5M words/mo, 35,000 words/mo plagiarism All PRO features, AI video detector, monthly plagiarism allowance MAX (Monthly)2026-10-31 ↗ USD 30.99/month — Monthly 150,000 chars per scan, 75 batch files, 7.5M words/mo, 60,000 words/mo plagiarism All PLUS features, unlimited paraphrase modes, ZeroCHAT-5 access PRO (Annual)2026-10-31 ↗ — USD 107.88/year Annual $107.88 billed annually ($8.99/mo equivalent), all PRO features included PRO tier annual features PLUS (Annual)2026-10-31 ↗ — USD 167.88/year Annual $167.88 billed annually ($13.99/mo equivalent), all PLUS features included PLUS tier annual features MAX (Annual)2026-10-31 ↗ — USD 239.88/year Annual $239.88 billed annually ($19.99/mo equivalent), all MAX features included MAX tier annual features 7 plan / billing-period records, all listed; — means that period is not recorded. Verified monthly rates: Pro $14.99/mo, Plus $21.99/mo, Max $30.99/mo; explicit annual upfront invoice totals: Pro $107.88/yr ($8.99/mo), Plus $167.88/yr ($13.99/mo), Max $239.88/yr ($19.99/mo); Free tier provides 15k chars/scan and 1.25M words/mo. Cancellation, sources & verification recordCancellation and refund terms unverified ZeroGPT Official Pricing Page (Annual View) ↗ · 2026-10-31 Capture 1 ↗ ZeroGPT Official Pricing Page (Monthly View) ↗ · 2026-10-31 Capture 1 ↗ | Smodin free daily limits, Starter, and Premium subscription pricing tiers · 2026-10-31 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-31 ↗ Free Free Free Daily limited AI rephrasing and detection queries with anonymous access Basic AI detection and rewriting queries Starter (Monthly)2026-10-31 ↗ USD 12.99/month — Monthly Instant access to all standard AI tools: detector, humanizer, plagiarism scanner, AI writer Standard AI detection and text humanization Starter (Annual)2026-10-31 ↗ — Annual price not verified Annual Annual Starter plan with full access to standard AI tools Standard AI detection and text humanization；Card displays only equivalent $10 USD/mo billed annually without explicit annual invoice total Premium (Monthly)2026-10-31 ↗ USD 19.99/month — Monthly Premium AI models, unlimited long-form writing output, advanced plagiarism scans, Turnitin-level humanization Advanced adversarial humanization and unlimited generation Premium (Annual)2026-10-31 ↗ — Annual price not verified Annual Annual Premium plan with premium AI models and unlimited output Advanced adversarial humanization and unlimited generation；Card displays only equivalent $16 USD/mo billed annually without explicit annual invoice total 5 plan / billing-period records, all listed; — means that period is not recorded. Verified monthly rates: Starter $12.99/mo, Premium $19.99/mo; annual plan cards show monthly equivalents ($10/mo, $16/mo) without explicit annual invoice total; annual plans kept unverified. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordCancellation and refund terms unverified Smodin Official Pricing Cards (Monthly) ↗ · 2026-10-31 Capture 1 ↗ Smodin Official Pricing Cards (Annual) ↗ · 2026-10-31 Capture 1 ↗ |
| Free & trial allowance on the test date | 300 words per scan free; paid tiers expand to 10k words and unlimited modes | Free tier has 1000-character minimum for anonymous entry; basic paraphrasing included |
| Cancellation & refunds | Not verified | Not verified |
| Disclosure of costs & limits | Results displayed immediately in workspace with one-click copy | Character bounds and rewritten text displayed immediately upon generation |
| Task quality | ||
| Measured fixture results | Fact retention: 100% · Lexical diversity: 80.7% · Semantic similarity: 55.3% · Readability score: 100/100 | Fact retention: 71.4% · Lexical diversity: 79.5% · Semantic similarity: 46.6% · Readability score: 100/100 |
| Fixture findings | 100% retention across all 7 facts and security token, natural syntax rephrasing, 100% readability score, and fully usable without login. | Preserves verification token REALTEST-PARAPHRASE-VERIFIED-2026 and $1,250,000 amount with 79.5% lexical diversity, 100 readability score, and 1.18s cloud latency. |
| Original historical observation | Input 80-word standard paraphrase anchor fixture (anchor_paraphrase_v1/input.txt); ZeroGPT returned 93-word rewritten text in 5.83s, retaining 100% of facts including REALTEST-PARAPHRASE-VERIFIED-2026, $1,250,000, and 84.2% with 80.7% lexical diversity. | Rewritten text preserves anti-counterfeit token and $1,250,000 figure (5/7 core facts retained), achieving 79.5% lexical diversity and 100 readability score. |
| Suitable uses · historical assessment | Not verified | Writers and students needing rapid multi-lingual paraphrasing and readability improvement |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | TXT · Output attached · No watermark in test | TXT · Output attached · Check watermark record |
| Historical specification note · not an official maximum | Full 5-paragraph rewritten text + 3-color highlights + statistics card | Full natural rewritten text with direct copy |
| Watermark observation | No watermark | Completely watermark-free |
| Batch & API | Not verified | Web interactive input + developer API |
| Recorded free-tier dimensions | 0.7 | Not verified |
| Attached file dimensions | Not verified | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 5.83s · End-to-end reference: 6.49s | Network-observed server wait: 1.18s · End-to-end reference: 1.18s |
| Date & fixture | 2026-11-05 · anchor_paraphrase_v1 · US-West (California, AS2914) | 2026-11-04 · anchor_paraphrase_v1 · US-West (California, AS2914) |
| Repeated tests & reliability | No standardized repetition count, success rate or variability range is recorded. | No standardized repetition count, success rate or variability range is recorded. |
| Interaction experience | ||
| Account requirements | No login in this test | Not verified |
| Sign-in methods | Anonymous rewriting supported; Google OAuth and email sign-in for accounts | No login required for basic rewriting |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Direct anonymous rewriting on homepage without popup barriers; presence of banner advertisements around workspace. | Clean web interface with side-by-side comparison, zero forced redirects or popups. |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | Olive Works LLC | Smodin LLC |
| Recorded origin | Wyoming, USA | United States |
| Domain history record | Operating since January 2023 | 2019–Present |
| Background & reputation assessment | Operated by Olive Works LLC in Wyoming; massive global traffic, though debated in academia regarding false positive thresholds. | Operated by Smodin LLC, providing AI language restructuring tools globally. |
| External reputation record | Globally popular AI text detector and paraphraser widely adopted across students and content creators. | Widely used AI writing, rewriting, and detection platform serving multi-lingual users globally. |
| Engineering & privacy | ||
| Processing location | Processing location unconfirmed | Processing location unconfirmed |
| Third-party tracking record | Google Analytics · Cloudflare | Google Analytics · Stripe · PayPal |
| Engineering & privacy assessment | Secured via Cloudflare and TLS 1.3; privacy terms state texts are processed for instant analysis and not repurposed for foundation model training. | Encrypted HTTPS transport, temporary session processing without public exposure. |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | Explicit retention period unconfirmed; inspect policy record |
| Evaluation basis | ||
| Pricing transparency | 35 / 35 Free tier allows 300 words per scan; paid plans Pro ($14.99/mo or $107.88/yr), Plus ($21.99/mo or $167.88/yr), and Max ($30.99/mo or $239.88/yr) provide 10k words with clear upfront billing. | 32 / 35 Transparently shows word count and mode options; Basic and Pro plans clearly listed. |
| Interaction restraint | 24 / 30 Direct anonymous rewriting on homepage without popup barriers; presence of banner advertisements around workspace. | 28 / 30 Clean web interface with side-by-side comparison, zero forced redirects or popups. |
| Background & reputation | 15 / 20 Operated by Olive Works LLC in Wyoming; massive global traffic, though debated in academia regarding false positive thresholds. | 16 / 20 Operated by Smodin LLC, providing AI language restructuring tools globally. |
| Engineering & privacy | 14 / 15 Secured via Cloudflare and TLS 1.3; privacy terms state texts are processed for instant analysis and not repurposed for foundation model training. | 14 / 15 Encrypted HTTPS transport, temporary session processing without public exposure. |
| Task quality | 52.2 / 65 Fact Retention: 100% · Lexical Diversity: 80.7% · Semantic Similarity: 55.3% · Readability Score: 100/100 | 43.1 / 65 Fact Retention: 71.4% · Lexical Diversity: 79.5% · Semantic Similarity: 46.6% · Readability Score: 100/100 |
| Deliverable specifications | 20 / 20 Clean unwatermarked export (8/8); Export spec: Full 5-paragraph rewritten text + 3-color highlights + statistics card | 20 / 20 Clean unwatermarked export (8/8); Export spec: Full natural rewritten text with direct copy |
| Processing speed | 15 / 15 Network-observed server wait: 5.83s (API mode: sync_json_verified; network upload 0s / end-to-end 6.49s shown for reference only, never penalized) | 15 / 15 Network-observed server wait: 1.18s (API mode: sync_json_verified; network upload 0s / end-to-end 1.18s shown for reference only, never penalized) |
